US4661706A - Blocker device for eliminating specular reflectance from a diffuse reflection spectrum - Google Patents
Blocker device for eliminating specular reflectance from a diffuse reflection spectrum Download PDFInfo
- Publication number
- US4661706A US4661706A US06/705,201 US70520185A US4661706A US 4661706 A US4661706 A US 4661706A US 70520185 A US70520185 A US 70520185A US 4661706 A US4661706 A US 4661706A
- Authority
- US
- United States
- Prior art keywords
- sample
- energy
- reflected
- blocker
- blocking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000001228 spectrum Methods 0.000 title claims description 40
- 238000000985 reflectance spectrum Methods 0.000 claims abstract description 34
- 230000000903 blocking effect Effects 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 230000035515 penetration Effects 0.000 claims description 2
- 230000005855 radiation Effects 0.000 claims description 2
- 230000008030 elimination Effects 0.000 claims 2
- 238000003379 elimination reaction Methods 0.000 claims 2
- 239000000126 substance Substances 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 abstract description 12
- 150000002484 inorganic compounds Chemical class 0.000 abstract description 4
- 229910010272 inorganic material Inorganic materials 0.000 abstract description 4
- 238000004566 IR spectroscopy Methods 0.000 abstract description 3
- 239000000523 sample Substances 0.000 description 92
- 230000003595 spectral effect Effects 0.000 description 17
- 239000000843 powder Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 239000013078 crystal Substances 0.000 description 7
- 239000008187 granular material Substances 0.000 description 7
- 239000011159 matrix material Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000001055 reflectance spectroscopy Methods 0.000 description 5
- 238000007788 roughening Methods 0.000 description 5
- 238000000411 transmission spectrum Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 238000002329 infrared spectrum Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 229910021532 Calcite Inorganic materials 0.000 description 2
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000013619 trace mineral Nutrition 0.000 description 2
- 239000011573 trace mineral Substances 0.000 description 2
- 238000002235 transmission spectroscopy Methods 0.000 description 2
- 241000282836 Camelus dromedarius Species 0.000 description 1
- 238000001069 Raman spectroscopy Methods 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000004847 absorption spectroscopy Methods 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000009365 direct transmission Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000005639 quantum mechanical wave Effects 0.000 description 1
- 239000013074 reference sample Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/4738—Diffuse reflection, e.g. also for testing fluids, fibrous materials
- G01N21/474—Details of optical heads therefor, e.g. using optical fibres
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N2021/3595—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using FTIR
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/4738—Diffuse reflection, e.g. also for testing fluids, fibrous materials
- G01N2021/4764—Special kinds of physical applications
- G01N2021/4769—Fluid samples, e.g. slurries, granulates; Compressible powdery of fibrous samples
Abstract
Description
Claims (20)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/705,201 US4661706A (en) | 1985-02-25 | 1985-02-25 | Blocker device for eliminating specular reflectance from a diffuse reflection spectrum |
CA000501488A CA1255946A (en) | 1985-02-25 | 1986-02-10 | Blocker device for eliminating specular reflectance from a diffuse reflection spectrum |
EP86301307A EP0200302B1 (en) | 1985-02-25 | 1986-02-24 | Blocker device for eliminating specular reflectance from a diffuse reflection spectrum |
DE8686301307T DE3663307D1 (en) | 1985-02-25 | 1986-02-24 | Blocker device for eliminating specular reflectance from a diffuse reflection spectrum |
JP61040151A JPS61196138A (en) | 1985-02-25 | 1986-02-25 | Device and method of gaining diffuse reflectance spectrum |
CN198686101254A CN86101254A (en) | 1985-02-25 | 1986-02-25 | Blocking facility with orienting reflex cancellation from diffuse reflection spectrum |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/705,201 US4661706A (en) | 1985-02-25 | 1985-02-25 | Blocker device for eliminating specular reflectance from a diffuse reflection spectrum |
Publications (1)
Publication Number | Publication Date |
---|---|
US4661706A true US4661706A (en) | 1987-04-28 |
Family
ID=24832473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/705,201 Expired - Lifetime US4661706A (en) | 1985-02-25 | 1985-02-25 | Blocker device for eliminating specular reflectance from a diffuse reflection spectrum |
Country Status (6)
Country | Link |
---|---|
US (1) | US4661706A (en) |
EP (1) | EP0200302B1 (en) |
JP (1) | JPS61196138A (en) |
CN (1) | CN86101254A (en) |
CA (1) | CA1255946A (en) |
DE (1) | DE3663307D1 (en) |
Cited By (71)
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---|---|---|---|---|
US4764676A (en) * | 1986-10-20 | 1988-08-16 | Laser Precision Corporation | Apparatus for spectral analysis of chromatographic fractions |
US4853542A (en) * | 1987-06-08 | 1989-08-01 | Nicolas J. Harrick | Collecting hemispherical attachment for spectrophotometry |
US4859064A (en) * | 1988-05-09 | 1989-08-22 | Spectra-Tech, Inc. | Diffuse reflectance spectroscopy system and method |
US4965454A (en) * | 1988-01-21 | 1990-10-23 | Hitachi, Ltd. | Method and apparatus for detecting foreign particle |
US5057691A (en) * | 1989-06-28 | 1991-10-15 | Nkk Corporation | Dilution material, filter and accessory for measuring infrared spectra |
US5058982A (en) * | 1989-06-21 | 1991-10-22 | Orbot Systems Ltd. | Illumination system and inspection apparatus including same |
US5262646A (en) * | 1990-07-27 | 1993-11-16 | Booker Graham R | Infra-red scanning microscopy |
US5605838A (en) * | 1993-09-17 | 1997-02-25 | Boehringer Mannheim Gmbh | Method for the quantitative analysis of sample liquid |
US5636633A (en) * | 1995-08-09 | 1997-06-10 | Rio Grande Medical Technologies, Inc. | Diffuse reflectance monitoring apparatus |
US5655530A (en) * | 1995-08-09 | 1997-08-12 | Rio Grande Medical Technologies, Inc. | Method for non-invasive blood analyte measurement with improved optical interface |
US6152876A (en) * | 1997-04-18 | 2000-11-28 | Rio Grande Medical Technologies, Inc. | Method for non-invasive blood analyte measurement with improved optical interface |
US6157041A (en) * | 1998-10-13 | 2000-12-05 | Rio Grande Medical Technologies, Inc. | Methods and apparatus for tailoring spectroscopic calibration models |
US6212424B1 (en) | 1998-10-29 | 2001-04-03 | Rio Grande Medical Technologies, Inc. | Apparatus and method for determination of the adequacy of dialysis by non-invasive near-infrared spectroscopy |
US6240306B1 (en) | 1995-08-09 | 2001-05-29 | Rio Grande Medical Technologies, Inc. | Method and apparatus for non-invasive blood analyte measurement with fluid compartment equilibration |
EP1111373A2 (en) * | 1999-12-22 | 2001-06-27 | Siemens Aktiengesellschaft | Procedure and apparatus for optical and spectroscopic measurement of properties of solid materials |
US6437312B1 (en) | 1999-08-05 | 2002-08-20 | Orbotech, Ltd. | Illumination for inspecting surfaces of articles |
US6441388B1 (en) | 1998-10-13 | 2002-08-27 | Rio Grande Medical Technologies, Inc. | Methods and apparatus for spectroscopic calibration model transfer |
US6483590B1 (en) | 2000-12-18 | 2002-11-19 | The Boeing Company | Instrument for rapidly characterizing material reflectance properties |
US20020171834A1 (en) * | 2001-04-11 | 2002-11-21 | Rowe Robert K. | Encoded variable filter spectrometer |
US20020183624A1 (en) * | 2001-06-05 | 2002-12-05 | Rio Grande Medical Technologies, Inc. | Apparatus and method of biometric determination using specialized optical spectroscopy systems |
US6560352B2 (en) | 1999-10-08 | 2003-05-06 | Lumidigm, Inc. | Apparatus and method of biometric identification or verification of individuals using optical spectroscopy |
US6574490B2 (en) | 2001-04-11 | 2003-06-03 | Rio Grande Medical Technologies, Inc. | System for non-invasive measurement of glucose in humans |
US6628809B1 (en) | 1999-10-08 | 2003-09-30 | Lumidigm, Inc. | Apparatus and method for identification of individuals by near-infrared spectrum |
US6654125B2 (en) | 2002-04-04 | 2003-11-25 | Inlight Solutions, Inc | Method and apparatus for optical spectroscopy incorporating a vertical cavity surface emitting laser (VCSEL) as an interferometer reference |
US20040033618A1 (en) * | 1998-10-13 | 2004-02-19 | Haass Michael J. | Accommodating subject and instrument variations in spectroscopic determinations |
US20040092822A1 (en) * | 2002-11-12 | 2004-05-13 | Robinson M. Ries | Diffuse reflectance spectroscopy |
US6816605B2 (en) | 1999-10-08 | 2004-11-09 | Lumidigm, Inc. | Methods and systems for biometric identification of individuals using linear optical spectroscopy |
US20040240712A1 (en) * | 2003-04-04 | 2004-12-02 | Lumidigm, Inc. | Multispectral biometric sensor |
US20050007582A1 (en) * | 2003-07-07 | 2005-01-13 | Lumidigm, Inc. | Methods and apparatus for collection of optical reference measurements for monolithic sensors |
US6847442B1 (en) | 1998-06-16 | 2005-01-25 | Orbotech, Ltd. | Illuminator for inspecting substantially flat surfaces |
US6862091B2 (en) | 2001-04-11 | 2005-03-01 | Inlight Solutions, Inc. | Illumination device and method for spectroscopic analysis |
US6865408B1 (en) | 2001-04-11 | 2005-03-08 | Inlight Solutions, Inc. | System for non-invasive measurement of glucose in humans |
US20050073690A1 (en) * | 2003-10-03 | 2005-04-07 | Abbink Russell E. | Optical spectroscopy incorporating a vertical cavity surface emitting laser (VCSEL) |
US20050205667A1 (en) * | 2003-04-04 | 2005-09-22 | Lumidigm, Inc. | Combined total-internal-reflectance and tissue imaging systems and methods |
US20050265585A1 (en) * | 2004-06-01 | 2005-12-01 | Lumidigm, Inc. | Multispectral liveness determination |
US20050271258A1 (en) * | 2004-06-01 | 2005-12-08 | Lumidigm, Inc. | Multispectral imaging biometrics |
US6982794B1 (en) | 1995-06-07 | 2006-01-03 | The Boeing Company | Directional reflectometer |
US6983176B2 (en) | 2001-04-11 | 2006-01-03 | Rio Grande Medical Technologies, Inc. | Optically similar reference samples and related methods for multivariate calibration models used in optical spectroscopy |
US20060062438A1 (en) * | 2003-04-04 | 2006-03-23 | Lumidigm, Inc. | Comparative texture analysis of tissue for biometric spoof detection |
US7027848B2 (en) | 2002-04-04 | 2006-04-11 | Inlight Solutions, Inc. | Apparatus and method for non-invasive spectroscopic measurement of analytes in tissue using a matched reference analyte |
US7043288B2 (en) | 2002-04-04 | 2006-05-09 | Inlight Solutions, Inc. | Apparatus and method for spectroscopic analysis of tissue to detect diabetes in an individual |
US20060110015A1 (en) * | 2003-04-04 | 2006-05-25 | Lumidigm, Inc. | Systems and methods for improved biometric feature definition |
WO2006076810A1 (en) * | 2005-01-21 | 2006-07-27 | Perceptronix Medical Inc. | Method And Apparatus For Measuring Cancerous Changes From Reflectance Spectral Measurements Obtained During Endoscopic Imaging |
US20060211928A1 (en) * | 2002-04-04 | 2006-09-21 | Hull Edward L | Determination of a measure of a glycation end-product or disease state using tissue fluorescence preferentially from the dermis |
US20060244947A1 (en) * | 2005-04-27 | 2006-11-02 | Lumidigm, Inc. | Multispectral Biometric Sensors |
US20070030475A1 (en) * | 2003-04-04 | 2007-02-08 | Lumidigm, Inc. | White-light spectral biometric sensors |
US20070116331A1 (en) * | 2004-06-01 | 2007-05-24 | Lumidigm, Inc. | System and method for robust fingerprint acquisition |
US20070197880A1 (en) * | 2002-04-04 | 2007-08-23 | Maynard John D | Determination of a Measure of a Glycation End-Product or Disease State Using Tissue Fluorescence of Various Sites |
US7263213B2 (en) | 2003-12-11 | 2007-08-28 | Lumidigm, Inc. | Methods and systems for estimation of personal characteristics from biometric measurements |
WO2007119199A1 (en) * | 2006-04-18 | 2007-10-25 | Koninklijke Philips Electronics N.V. | Optical measurement device |
US20070265532A1 (en) * | 2002-04-04 | 2007-11-15 | Maynard John D | Determination of a Measure of a Glycation End-Product or Disease State Using a Flexible Probe to Determine Tissue Fluorescence of Various Sites |
US20070276199A1 (en) * | 2002-04-04 | 2007-11-29 | Ediger Marwood N | Determination of a Measure of a Glycation End-Product or Disease State Using Tissue Fluorescence |
US7394919B2 (en) | 2004-06-01 | 2008-07-01 | Lumidigm, Inc. | Multispectral biometric imaging |
US20080192988A1 (en) * | 2006-07-19 | 2008-08-14 | Lumidigm, Inc. | Multibiometric multispectral imager |
US20080232653A1 (en) * | 2007-03-21 | 2008-09-25 | Lumidigm, Inc. | Biometrics based on locally consistent features |
US20080298649A1 (en) * | 2004-06-01 | 2008-12-04 | Lumidigm, Inc. | Hygienic biometric sensors |
US20090046903A1 (en) * | 2007-04-10 | 2009-02-19 | Lumidigm, Inc. | Biometric Detection Using Spatial, Temporal, And/Or Spectral Techniques |
US20090080709A1 (en) * | 2006-07-19 | 2009-03-26 | Lumidigm, Inc. | Whole-Hand Multispectral Biometric Imaging |
US7545963B2 (en) | 2003-04-04 | 2009-06-09 | Lumidigm, Inc. | Texture-biometrics sensor |
US20090245591A1 (en) * | 2006-07-19 | 2009-10-01 | Lumidigm, Inc. | Contactless Multispectral Biometric Capture |
US7620212B1 (en) | 2002-08-13 | 2009-11-17 | Lumidigm, Inc. | Electro-optical sensor |
US7801339B2 (en) | 2006-07-31 | 2010-09-21 | Lumidigm, Inc. | Biometrics with spatiospectral spoof detection |
US7804984B2 (en) | 2006-07-31 | 2010-09-28 | Lumidigm, Inc. | Spatial-spectral fingerprint spoof detection |
US20100246902A1 (en) * | 2009-02-26 | 2010-09-30 | Lumidigm, Inc. | Method and apparatus to combine biometric sensing and other functionality |
US20110085708A1 (en) * | 2009-08-26 | 2011-04-14 | Lumidigm. Inc. | Multiplexed biometric imaging |
US20110163163A1 (en) * | 2004-06-01 | 2011-07-07 | Lumidigm, Inc. | Multispectral barcode imaging |
US20120153160A1 (en) * | 2009-06-25 | 2012-06-21 | Sean Thomas Forrester | Method of detecting contaminants |
US8570149B2 (en) | 2010-03-16 | 2013-10-29 | Lumidigm, Inc. | Biometric imaging using an optical adaptive interface |
US8787630B2 (en) | 2004-08-11 | 2014-07-22 | Lumidigm, Inc. | Multispectral barcode imaging |
WO2017033178A1 (en) * | 2015-08-27 | 2017-03-02 | Elbit Systems Land And C4I Ltd. | System and method for object authenticity detection |
WO2020028176A1 (en) * | 2018-07-30 | 2020-02-06 | Thermo Electron Scientific Instruments Llc | Diffuse reflectance apparatus |
Families Citing this family (4)
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CN102401796B (en) * | 2010-09-09 | 2017-02-01 | 艾博生物医药(杭州)有限公司 | Device for reading assay result from assay carrier |
RU2014129036A (en) * | 2011-12-16 | 2016-02-10 | Глэксо Груп Лимитед | DEVICE FOR STUDYING SAMPLES USING RAMANOVSKII RADIATION |
CN103884734B (en) * | 2014-04-01 | 2016-01-20 | 河南师范大学 | The apparatus and method of a kind of continuous coverage material direction spectral emittance |
CN114295558B (en) * | 2021-12-31 | 2023-08-22 | 四川启睿克科技有限公司 | Portable Spectrometer |
Citations (8)
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US3177757A (en) * | 1960-03-29 | 1965-04-13 | American Optical Corp | Method of performing reflective oximetry |
US3564262A (en) * | 1968-02-07 | 1971-02-16 | Hach Chemical Co | Turbidimeter using a pressurized fluid container |
US3854045A (en) * | 1970-10-21 | 1974-12-10 | Bergwerksverband Gmbh | Measuring the dust concentration in air |
US3947088A (en) * | 1974-08-22 | 1976-03-30 | Weber Dental Manufacturing Co. | Interface for light probe |
US3962581A (en) * | 1975-10-06 | 1976-06-08 | Westvaco Corporation | Infra-red consistency meter |
US4029391A (en) * | 1974-08-22 | 1977-06-14 | Sterndent Corporation | Light probe and interface therefor |
US4353618A (en) * | 1978-11-09 | 1982-10-12 | Ernst Leitz Wetzlar Gmbh | Optical arrangement for the reflecting microscopic examination of an object |
US4473295A (en) * | 1981-08-31 | 1984-09-25 | Laser Precision Corporation | Parabolic focusing apparatus for optical spectroscopy |
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---|---|---|---|---|
US4022534A (en) * | 1976-03-23 | 1977-05-10 | Kollmorgen Corporation | Reflectometer optical system |
DE3226370A1 (en) * | 1982-07-14 | 1984-01-19 | Compur-Electronic GmbH, 8000 München | REMISSION MEASURING HEAD |
CA1201300A (en) * | 1982-11-01 | 1986-03-04 | Albert Brunsting | Optical readhead |
-
1985
- 1985-02-25 US US06/705,201 patent/US4661706A/en not_active Expired - Lifetime
-
1986
- 1986-02-10 CA CA000501488A patent/CA1255946A/en not_active Expired
- 1986-02-24 DE DE8686301307T patent/DE3663307D1/en not_active Expired
- 1986-02-24 EP EP86301307A patent/EP0200302B1/en not_active Expired
- 1986-02-25 CN CN198686101254A patent/CN86101254A/en active Pending
- 1986-02-25 JP JP61040151A patent/JPS61196138A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US3177757A (en) * | 1960-03-29 | 1965-04-13 | American Optical Corp | Method of performing reflective oximetry |
US3564262A (en) * | 1968-02-07 | 1971-02-16 | Hach Chemical Co | Turbidimeter using a pressurized fluid container |
US3854045A (en) * | 1970-10-21 | 1974-12-10 | Bergwerksverband Gmbh | Measuring the dust concentration in air |
US3947088A (en) * | 1974-08-22 | 1976-03-30 | Weber Dental Manufacturing Co. | Interface for light probe |
US4029391A (en) * | 1974-08-22 | 1977-06-14 | Sterndent Corporation | Light probe and interface therefor |
US3962581A (en) * | 1975-10-06 | 1976-06-08 | Westvaco Corporation | Infra-red consistency meter |
US4353618A (en) * | 1978-11-09 | 1982-10-12 | Ernst Leitz Wetzlar Gmbh | Optical arrangement for the reflecting microscopic examination of an object |
US4473295A (en) * | 1981-08-31 | 1984-09-25 | Laser Precision Corporation | Parabolic focusing apparatus for optical spectroscopy |
Non-Patent Citations (2)
Title |
---|
Griffiths, P. R. et al., "Mid--Infrared Spectrometry of Powdered Samples," Advances in Infrared and Raman Spectroscopy, vol. 9, Chap. 2. |
Griffiths, P. R. et al., Mid Infrared Spectrometry of Powdered Samples, Advances in Infrared and Raman Spectroscopy, vol. 9, Chap. 2. * |
Cited By (145)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4764676A (en) * | 1986-10-20 | 1988-08-16 | Laser Precision Corporation | Apparatus for spectral analysis of chromatographic fractions |
US4853542A (en) * | 1987-06-08 | 1989-08-01 | Nicolas J. Harrick | Collecting hemispherical attachment for spectrophotometry |
US4965454A (en) * | 1988-01-21 | 1990-10-23 | Hitachi, Ltd. | Method and apparatus for detecting foreign particle |
US4859064A (en) * | 1988-05-09 | 1989-08-22 | Spectra-Tech, Inc. | Diffuse reflectance spectroscopy system and method |
DE3913228A1 (en) * | 1988-05-09 | 1989-11-23 | Spectra Tech Inc | SPECTROSCOPY SYSTEM DIFFUSER REFLECTION AND METHOD FOR OBTAINING A DIFFUSER REFLECTION SPECTRUM |
DE3913228C2 (en) * | 1988-05-09 | 1998-04-09 | Spectra Tech Inc | Diffuse reflection spectroscopy system and method for obtaining a diffuse reflection spectrum |
US5058982A (en) * | 1989-06-21 | 1991-10-22 | Orbot Systems Ltd. | Illumination system and inspection apparatus including same |
US5057691A (en) * | 1989-06-28 | 1991-10-15 | Nkk Corporation | Dilution material, filter and accessory for measuring infrared spectra |
US5262646A (en) * | 1990-07-27 | 1993-11-16 | Booker Graham R | Infra-red scanning microscopy |
US5869001A (en) * | 1993-09-17 | 1999-02-09 | Boehringer Mannheim Gmbh | Apparatus for the quantitative analysis of sample liquid |
US5605838A (en) * | 1993-09-17 | 1997-02-25 | Boehringer Mannheim Gmbh | Method for the quantitative analysis of sample liquid |
US6982794B1 (en) | 1995-06-07 | 2006-01-03 | The Boeing Company | Directional reflectometer |
US5636633A (en) * | 1995-08-09 | 1997-06-10 | Rio Grande Medical Technologies, Inc. | Diffuse reflectance monitoring apparatus |
US5823951A (en) * | 1995-08-09 | 1998-10-20 | Rio Grande Medical Technologies, Inc. | Method for non-invasive blood analyte measurement with improved optical interface |
EP0845103A1 (en) * | 1995-08-09 | 1998-06-03 | Rio Grande Medical Technologies, Inc. | Improved diffuse reflectance monitoring apparatus |
US5935062A (en) * | 1995-08-09 | 1999-08-10 | Rio Grande Medical Technologies, Inc. | Diffuse reflectance monitoring apparatus |
EP0845103A4 (en) * | 1995-08-09 | 1999-12-15 | Rio Grande Medical Tech Inc | Improved diffuse reflectance monitoring apparatus |
US5655530A (en) * | 1995-08-09 | 1997-08-12 | Rio Grande Medical Technologies, Inc. | Method for non-invasive blood analyte measurement with improved optical interface |
US6622032B1 (en) | 1995-08-09 | 2003-09-16 | Inlight Solutions, Inc. | Method for non-invasive blood analyte measurement with improved optical interface |
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JPS61196138A (en) | 1986-08-30 |
EP0200302B1 (en) | 1989-05-10 |
DE3663307D1 (en) | 1989-06-15 |
CA1255946A (en) | 1989-06-20 |
CN86101254A (en) | 1986-10-22 |
EP0200302A1 (en) | 1986-11-05 |
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